@cosmopolitanuk: We caught up with the iconic @JEN ATKIN, celebrity hairstylist and founder of @the OUAI, to chat all things hair. From the blowdry debate to whether you should hit the salon with greasy hair, Jen spills all the tea. Plus, she gave Cosmo a sneak peek of her brand new Ouai St Barts Hair Oil - it's like a summer holiday in a bottle 🌴 #jenatkin #ouai #hairstyle